"
This class represents the abstract leaf structure of items stored in History tree. Composite nodes of such trees are made of HistoryNode instances. For a particular use, this class need to be subclassed. See for example UndoRedoRecord
"
Class {
	#name : 'HistoryLeaf',
	#superclass : 'Object',
	#category : 'System-History-Utilities',
	#package : 'System-History',
	#tag : 'Utilities'
}

{ #category : 'adding' }
HistoryLeaf >> addItem: anHistoryItem [
	^ false
]

{ #category : 'testing' }
HistoryLeaf >> isComposite [
	^ false
]

{ #category : 'testing' }
HistoryLeaf >> opened [
	^ false
]
